I was using the GAMESPOT weighted numbering scale:

Generous Averages Make Easy Satisfied Publishers, Our TrafficReliesOnThem

It's a very different game, although it does have vehicles, so it has something in common with UT2004 in that way.

Unreal 2's multiplayer only has one game mode. It's kind of like capture the flag with some resource management. There are power generators that you need to take for your team in order to use vehicles. You can also capture respawn points which give your team more choices of where to respawn from.

You choose one of three classes when you spawn, with each class having specific weapons. You don't pick up weapons as you go.

There is a release of the multiplayer that's available for free here: https://xmpcommunity.com. After Epic tool all Unreal titles off of digital stores a while ago, they specifically mentioned xmpcommunity.com in a blog post as a way of still playing the game. So it has their blessing.